An A4Tech ergonomic optical computer mouse, featuring a contoured shell designed for desktop and portable computing. The peripheral is styled in a dual-tone matte and glossy black finish with a central scroll wheel and integrated dual primary buttons.

Product Specifications

• Artist / Maker: A4Tech
• Material / Technique: molded synthetic polymer, electronic optical components
• Markings: printed "A4TECH" brand logo on the right lower shell edge
• Colour & Surface: matte black body with contoured side grip and glossy trim
• Condition: light surface rubbing and minor wear from standard desktop use

History

Founded in 1987, A4Tech became a prominent international developer and manufacturer of personal computer peripherals, specializing in input hardware including optical mice and keyboards. The widespread adoption of optical sensor technology during the early 2000s revolutionized user navigation by eliminating traditional mechanical roller balls in favor of precise LED track sensors.